Etkin Yağış Metotlarının Kıyaslaması: Orta Fırat Havzası Örneği

Abstract

Precipitation is one of the climate parameters with the widest effects. Not all precipitation seeps into the ground; some may evaporate; another part may turn into the runoff. Only part of the stored water will be taken up by the roots to meet the transpiration needs of the plant. Therefore, it is necessary to know the effective precipitation. This study was prepared to calculate the effective precipitation amount and to compare the different methods used for effective precipitation forecasting. For this purpose, the effective precipitation values were calculated by using the average monthly precipitation data of 15 stations in the Middle Euphrates Section, which is important in terms of agricultural potential and at the same time-sensitive. Comparison of 3 different methods recommended by FAO: USDA-SCS, FAO/AGLW and Empirical. According to the results, the most applicable method for the Middle Euphrates Section was determined as the USDA-SCS method. however, considering these methods integrated with soil balance methods, especially in sensitive areas, provides a more complete overview of the simulation quality of the methods.

Keywords

• effective rainfall
• middle euphrates
• usda method
• fao/aglw method
• empirical formula